what you need and do is very simple:

1. install the software and create a ramdisk, and set it up accordingly; the size is up to you. you can  start with a small one, then adjust it when it's insufficient for your usage.

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2. map user temporary folder, and web broswer cache folders to ram disk.

note that i use the option that creates the ramdisk and directory structures on-the-fly; i do not create a ramdisk image that can be reused (i.e. preserve the state of ram disk contents and reloaded upon next boot). to me, this is good enough. please consult the user manual for more complex setups.